1bb2328fd3
* Implement "P2441R2 `views::join_with`" (https://wg21.link/P2441R2), closes #105185 * Implement LWG4074 (https://wg21.link/LWG4074), closes #105346 * Complete implementation of "P2711R1 Making multi-param constructors of views explicit" (https://wg21.link/P2711R1), closes #105252 * Complete implementation of "P2770R0 Stashing stashing iterators for proper flattening" (https://wg21.link/P2770R0), closes #105250
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// REQUIRES: std-at-least-c++23
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// <ranges>
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// class join_with_view : public view_interface<join_with_view<V, Pattern>>
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#include <ranges>
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#include <concepts>
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#include <string>
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#include <vector>
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template <class T>
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struct View : std::ranges::view_base {
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std::vector<T>* begin();
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std::vector<T>* end();
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};
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template <class T>
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struct Pattern : std::ranges::view_base {
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T* begin();
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T* end();
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};
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template <class T>
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using JoinWithView = std::ranges::join_with_view<View<T>, Pattern<T>>;
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static_assert(std::derived_from<JoinWithView<int>, std::ranges::view_interface<JoinWithView<int>>>);
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static_assert(std::derived_from<JoinWithView<void*>, std::ranges::view_interface<JoinWithView<void*>>>);
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static_assert(std::derived_from<JoinWithView<std::string>, std::ranges::view_interface<JoinWithView<std::string>>>);
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